User`s guide

96
Entity
Instance
Parameter
Values
Equivalent Web Parameter
ppp n maxneg 0 – 2147483648
if the negotiation is not
complete in s seconds
ppp n uplogmins 0 – 2147483647
Generate an event after this
interface has been up for m
mins
ppp n dlwarnkb 0 – 2147483647 Issue a warning after n units
ppp n dlstopkb 0 – 2147483647
Stop data from being
transmitted after n units
ppp n dlrstday 0 – 255
Reset the data limit on the n
day of the month
LAPD > LAPDn
Configuration - Network > Interfaces > ISDN> LAPD> LAPDn
This page allows you to configure the ISDN LAPD interfaces. Link Access Protocol D (LAPD)
is the protocol used for ISDN D-channel signalling and call setup.
LAPD 0 and LAPD 1 can be used as required for SAPI 16 traffic (i.e. X.25 over D-channel).
LAPD 2 is normally reserved for ISDN call control.
Enable LAPD n
Un-checking this parameter will disable the LAPD instance. This may be necessary if you
have an installation where two or more units are connected to the same ISDN “S” bus. In
this case, only one of the units may be configured for D-channel X.25 on TEI1, SAPI16. On
each of the other units you must disable any LAPD instance for which the TEI is set to 1 in
order to prevent it from responding to X.25 traffic on that TEI that is actually destined for
another unit.
When checked, this check box will also reveal the following configuration parameters
Mode
When the DTE/DCE mode parameter is set to DTE, the unit will behave as a DTE. This is the
default value and should not be changed for normal operation across the ISDN network. If
your application involves using two units back-to-back, one of the units should have the
DTE mode value set to DCE.
N400 Counter
This is the standard LAPB/LAPD retry counter. The default value is 3 and it should not
normally be necessary to change this.
RR Timer n msecs
This is a standard LAPB/LAPD “Receiver Ready” timer. The default value is 10,000ms (10
seconds) and it should not normally be necessary to change this.
T1 Timer n msecs
This is the standard LAPB/LAPD timer. The default value is 1000 milliseconds (1 second) and
it should not normally be necessary to change this.
T200 Timer n msecs
This is the standard LAPB/LAPD re-transmit timer in milliseconds. The default value is 1000
milliseconds (1 second) and it should not normally be necessary to change this.
TEI